Test ink for surface tension measurement

The task

“What is the surface energy of this film?”

Test inks by SOFTAL let you measure the surface energy of test inks quickly and repeatably in accordance with DIN ISO 8296.

Test inks are delivered in packs of ten with different surface tension values.

To perform the test, lines of different inks are applied to the film in question and their behaviour observed. By observing the individual behaviour of different test inks, the test ink with the ideal ink behaviour is identified. The surface tension of the test ink with the ideal ink behaviour is thenm identical to the surface energy of the film.

This knowledge allows for quality assurance and process optimization, for example by making the difference before and after a corona treatment step visible.

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Results

SOFTAL quality

Uninterrupted operation

Characteristics

Repeatable in accordance with DIN ISO standard

Test inks by SOFTAL let you measure the surface energy of test inks quickly and repeatably in accordance with DIN ISO 8296.

Quick results

Applying and evaluating a test ink is a matter of seconds.

Complete delivery

A standard set of test ink, blue, contains 10 bottles à 30 ml in a suitcase with the following surface tension values: 34, 36, 38, 40, 42, 44, 46, 48, 52, 54 mN/m.

Of course, test inks are available separately – in bottles of 30 ml with surface tensions ranging from 30 to 72 mN/m.

Simple procedure

To perform the test, the behaviour of different lines of ink on the PE or PP film in question is observed. The line of ink with the best ink behaviour then has the same surface tension value as the film.

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